From b0724f89e3b05de1d6492e79ec89f6d467cb14f0 Mon Sep 17 00:00:00 2001 From: Guo Mang Date: Thu, 27 Apr 2017 11:08:17 +0800 Subject: MdePkg: Move to new location Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Guo Mang --- Core/MdePkg/Library/BaseLib/Ia32/ReadMm3.c | 42 ++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 Core/MdePkg/Library/BaseLib/Ia32/ReadMm3.c (limited to 'Core/MdePkg/Library/BaseLib/Ia32/ReadMm3.c') diff --git a/Core/MdePkg/Library/BaseLib/Ia32/ReadMm3.c b/Core/MdePkg/Library/BaseLib/Ia32/ReadMm3.c new file mode 100644 index 0000000000..b0d62d8e3d --- /dev/null +++ b/Core/MdePkg/Library/BaseLib/Ia32/ReadMm3.c @@ -0,0 +1,42 @@ +/** @file + AsmReadMm3 function + + Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.
+ This program and the accompanying materials + are licensed and made available under the terms and conditions of the BSD License + which accompanies this distribution. The full text of the license may be found at + http://opensource.org/licenses/bsd-license.php. + + THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, + WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. + +**/ + + + + +/** + Reads the current value of 64-bit MMX Register #3 (MM3). + + Reads and returns the current value of MM3. This function is only available + on IA-32 and x64. + + @return The current value of MM3. + +**/ +UINT64 +EFIAPI +AsmReadMm3 ( + VOID + ) +{ + _asm { + push eax + push eax + movq [esp], mm3 + pop eax + pop edx + emms + } +} + -- cgit v1.2.3